Desperate with Network Share on Win 7

So, in the end, having Windows 7 64bit , which is the only way to make things working ? I’ve tried disabling media sharing and still nothing. I have the home group preferences set, workgroup name in my case iis MSHOME and I set the same on my WDTV live player… But nothing? I do the net vie cmd and I receive a Message that there is nothing to list, network is enabled and correctly set, registry checked … But nothing. Also, I take a directory and if I try to share I receive a message saying it is impossible to share the directory, but at the same time is and appears shared like mypcname\pictures and so on… Have to uninstall Live Mail maybe ?? Live ID assistant is uninstalled, still having Live Mail and other 2 programs of the live essential (vdvd creator and the other one…). Please help Cheers Denis